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/
usr
/
src
/
linux-headers-6.8.0-36
/
include
/
sound
/ [
drwxr-xr-x
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soc-jack.h
/* SPDX-License-Identifier: GPL-2.0 * * soc-jack.h * * Copyright (C) 2019 Renesas Electronics Corp. * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> */ #ifndef __SOC_JACK_H #define __SOC_JACK_H /** * struct snd_soc_jack_pin - Describes a pin to update based on jack detection * * @pin: name of the pin to update * @mask: bits to check for in reported jack status * @invert: if non-zero then pin is enabled when status is not reported * @list: internal list entry */ struct snd_soc_jack_pin { struct list_head list; const char *pin; int mask; bool invert; }; /** * struct snd_soc_jack_zone - Describes voltage zones of jack detection * * @min_mv: start voltage in mv * @max_mv: end voltage in mv * @jack_type: type of jack that is expected for this voltage * @debounce_time: debounce_time for jack, codec driver should wait for this * duration before reading the adc for voltages * @list: internal list entry */ struct snd_soc_jack_zone { unsigned int min_mv; unsigned int max_mv; unsigned int jack_type; unsigned int debounce_time; struct list_head list; }; /** * struct snd_soc_jack_gpio - Describes a gpio pin for jack detection * * @gpio: legacy gpio number * @idx: gpio descriptor index within the function of the GPIO * consumer device * @gpiod_dev: GPIO consumer device * @name: gpio name. Also as connection ID for the GPIO consumer * device function name lookup * @report: value to report when jack detected * @invert: report presence in low state * @debounce_time: debounce time in ms * @wake: enable as wake source * @jack_status_check: callback function which overrides the detection * to provide more complex checks (eg, reading an * ADC). */ struct snd_soc_jack_gpio { unsigned int gpio; unsigned int idx; struct device *gpiod_dev; const char *name; int report; int invert; int debounce_time; bool wake; /* private: */ struct snd_soc_jack *jack; struct delayed_work work; struct notifier_block pm_notifier; struct gpio_desc *desc; void *data; /* public: */ int (*jack_status_check)(void *data); }; struct snd_soc_jack { struct mutex mutex; struct snd_jack *jack; struct snd_soc_card *card; struct list_head pins; int status; struct blocking_notifier_head notifier; struct list_head jack_zones; }; /* Jack reporting */ void snd_soc_jack_report(struct snd_soc_jack *jack, int status, int mask); int snd_soc_jack_add_pins(struct snd_soc_jack *jack, int count, struct snd_soc_jack_pin *pins); void snd_soc_jack_notifier_register(struct snd_soc_jack *jack, struct notifier_block *nb); void snd_soc_jack_notifier_unregister(struct snd_soc_jack *jack, struct notifier_block *nb); int snd_soc_jack_add_zones(struct snd_soc_jack *jack, int count, struct snd_soc_jack_zone *zones); int snd_soc_jack_get_type(struct snd_soc_jack *jack, int micbias_voltage); #ifdef CONFIG_GPIOLIB int snd_soc_jack_add_gpios(struct snd_soc_jack *jack, int count, struct snd_soc_jack_gpio *gpios); int snd_soc_jack_add_gpiods(struct device *gpiod_dev, struct snd_soc_jack *jack, int count, struct snd_soc_jack_gpio *gpios); void snd_soc_jack_free_gpios(struct snd_soc_jack *jack, int count, struct snd_soc_jack_gpio *gpios); #else static inline int snd_soc_jack_add_gpios(struct snd_soc_jack *jack, int count, struct snd_soc_jack_gpio *gpios) { return 0; } static inline int snd_soc_jack_add_gpiods(struct device *gpiod_dev, struct snd_soc_jack *jack, int count, struct snd_soc_jack_gpio *gpios) { return 0; } static inline void snd_soc_jack_free_gpios(struct snd_soc_jack *jack, int count, struct snd_soc_jack_gpio *gpios) { } #endif #endif /* __SOC_JACK_H */
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